61980967 has 2 divisors, whose sum is σ = 61980968. Its totient is φ = 61980966.

The previous prime is 61980949. The next prime is 61981001. The reversal of 61980967 is 76908916.

61980967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61980967 - 2¹¹ = 61978919 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61980937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30990483 + 30990484.

It is an arithmetic number, because the mean of its divisors is an integer number (30990484).

Almost surely, 2^61980967 is an apocalyptic number.

61980967 is a deficient number, since it is larger than the sum of its proper divisors (1).

61980967 is an equidigital number, since it uses as much as digits as its factorization.

61980967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 61980967 is about 7872.7991845340. The cubic root of 61980967 is about 395.7486565268.

The spelling of 61980967 in words is "sixty-one million, nine hundred eighty thousand, nine hundred sixty-seven".